My Cursed Technique Is a Butter Game

[Not sure whether to make this a female-led or romance story, might change] [Preliminary blurb, I'll revise it later, but the core idea won't change] I transmigrated. My cursed technique is based on a game I played before transmigrating. I get the skills and inventory of the game's characters. But damn it, I was playing an eroge... Looking at all the weird items in my inventory... this is so embarrassing... Ahem, actually, I have a friend who plays this game. I was playing it on their behalf. Really... You have to believe me. Theme: Yes, I have a friend.